EP0139815B1 - Safety ski binding - Google Patents

Safety ski binding Download PDF

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Publication number
EP0139815B1
EP0139815B1 EP84103485A EP84103485A EP0139815B1 EP 0139815 B1 EP0139815 B1 EP 0139815B1 EP 84103485 A EP84103485 A EP 84103485A EP 84103485 A EP84103485 A EP 84103485A EP 0139815 B1 EP0139815 B1 EP 0139815B1
Authority
EP
European Patent Office
Prior art keywords
fact
lever
ski
sole
binding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84103485A
Other languages
German (de)
French (fr)
Other versions
EP0139815A2 (en
EP0139815A3 (en
Inventor
Gaston Haldemann
François Wirz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CAMBIO RAGIONE SOCIALE;GALDE AG
Original Assignee
HALDEMANN AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HALDEMANN AG filed Critical HALDEMANN AG
Priority to AT84103485T priority Critical patent/ATE28575T1/en
Publication of EP0139815A2 publication Critical patent/EP0139815A2/en
Publication of EP0139815A3 publication Critical patent/EP0139815A3/xx
Application granted granted Critical
Publication of EP0139815B1 publication Critical patent/EP0139815B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/001—Anti-friction devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • A63C9/0842—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw the jaw pivoting on the body or base about a transverse axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08535—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw
    • A63C9/0855—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a mobile body or base or single jaw pivoting about a vertical axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism
    • A63C9/08571—Details of the release mechanism using axis and lever
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0848—Structure or making
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism
    • A63C9/08564—Details of the release mechanism using cam or slide surface
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08592—Structure or making

Definitions

  • the present invention relates to a safety binding of a boot on a ski, and more particularly to a safety binding comprising in particular lateral jaws intended to hold the boot in the service position on a ski.
  • the aim of the present invention therefore consists in providing a safety binding which overcomes the aforementioned drawbacks of known safety bindings with front stop and heel piece, by creating the conditions such that the binding is capable of completely neutralizing the additional torque due to parasitic friction and that the effects of jamming due to the twisting of the shoe in the front stop are eliminated.
  • object of the invention which comprises two lateral jaws mounted movable under the action of an elastic member in a plane parallel to that of the ski, between a closed service position in which these jaws cooperate with the sole of the shoe and an open position in which the latter is released, and which is characterized by the fact that it comprises a heel piece having a sole-clamping element mounted movable under the action of the same elastic member in a longitudinal plane perpendicular to the plane of the ski, between a service position in which said element maintains the rear end of the sole of the boot on the ski and an open position in which the latter is released , the whole arranged so that the opening, respectively the closing, of the lateral jaws or of the sole-clamping element causes the opening, respectively the closing, of the element soleplate or side jaws.
  • this invention also relates to a ski boot intended to be fixed on a ski by means of the safety binding defined above, and which is characterized in that it comprises a sole having imprints cooperating in service position with the side jaws of the binding.
  • This binding fixed for example by screwing on the upper surface of a ski S, comprises two parts mechanically connected to each other, on the one hand a front device 1 for retaining the ski boot C in torsion and comprising in particular two lateral jaws 2, and on the other hand a rear device 3 for longitudinal retention (for front and rear falls) or heel piece, which in particular comprises a housing 4, in which is mounted an elastic member 5, and a lever actuation 6 also serving as a means of tightening the heel T of the boot C in the service position on the ski.
  • the two devices respectively front 1 and rear 3 are mechanically coupled, so that the elastic member 5 of energy accumulation actuates these two devices and that the opening, respectively closing, of one of the devices causes the opening, respectively closing, of the other device, and vice versa.
  • the front device 1 comprises two arms 7 carrying the jaws 2 and mounted pivoting each around a vertical pivot 8 so as to be able to move parallel to the surface of the ski S between a position closed service ( Figures 1 and 2), the jaws 2 by clamping in this position the side edges of the middle portion of the ski boot C, and an open position ( Figure 3) in which said boot is released.
  • the aforementioned displacement is caused by the action of the elastic member 5 of the heel piece 3 to which the arms 7 are connected by means of a rod 9 sliding longitudinally.
  • This rod 9 is connected to the arms 7 carrying the lateral jaws 2 by means of two pairs of rods 10, 11.
  • Each pair of rods comprises a first straight rod 10, one end of which is articulated at the end of the rod 9 and the other end is articulated on a second bent link 11, by means of articulation pins 12, 13.
  • This is pivotally mounted at its bent portion on a vertical pivot 14 secured to the upper surface of the ski and has an elongated opening 15 with which cooperates a hinge pin 16 secured to the arm 7, so as to allow the lateral opening of the jaws 2 under the effect of a longitudinal movement of translation of the rod 9 towards the before.
  • the rear end of the rod 9 is on the other hand connected to the elastic member 5 that has the heel piece 3 by means of bent rods 17, one end of which is provided with a transverse axis 18 cooperating with a fork 19 that has the rear end of said rod 9.
  • the other end of the bent rods 17 is provided with a transverse axis 20 pivoted in one of the parts 21 of a spring case forming part of the heel piece 3.
  • the rear or heel device 3 comprises a housing 4 fixed to the ski S in the walls of which is fixed a pin 22 on which the actuation lever 6 is pivotally mounted.
  • the heel piece 3 also comprises a spring case mounted pivoting about two transverse axes 23 fixed in the walls of the case 4, the spring case being formed of two parts 21, 24 sliding one inside the other so to act as a piston to compress the elastic member 5, here a helical spring, the force of the latter being adjustable by means of an adjustment screw 25 accessible from the rear of the heel piece 3.
  • the other part 24 of the spring housing is articulated on the lever 6 by means of an axis 26.
  • the bent connecting rods 17 are pivotally mounted at their bent portion on axes 27 fixed in the walls of the housing 4.
  • the lever 6 has a sole clamp 29. pressing in the service position on the upper edge of the heel T of the ski boot C ( Figure 1) so as to maintain the latter on the ski S. in combination with the two lateral jaws 2.
  • the lever 6 also has a member 30 for automatic footing ("step-in"), the operation of which will be described later.
  • the safety attachment also comprises a base plate 31 and a lateral guide element 32.
  • the base plate 31 is fixed, for example by screwing, to the upper surface of the ski S and is intended to serve as a housing for the mobile mechanical elements of the binding, in particular the arms 7 carrying the jaws, the actuating rod 9 and the two sets of articulation rods 10, 11, and to receive on its upper face the sole of the ski boot.
  • This base plate 31 has the particularity of presenting at its front end a deformable portion 31 'in cantilever and subjected to an elastic action tending to keep this portion parallel to the surface of the ski S.
  • l 'elastic action is exerted by two small helical springs 33, the space between the upper surface of the ski and the deformable portion 31' being further filled with a plastic foam 34, preferably with flexible closed cells, in order to avoid ice formation or the presence of snow or other materials in this space.
  • a plastic foam 34 preferably with flexible closed cells, in order to avoid ice formation or the presence of snow or other materials in this space.
  • at least the deformable portion 31 ′ of the base plate 31 is provided on its upper face with a coating intended to improve the coefficient of friction with the sole of the shoe C, for example a coating in “Teflon”.
  • the lateral guide element 32 is formed by a transverse blade pivotally mounted on the base plate 31 by means of a screw 35 passing through its center, the ends of the blade being bent substantially vertically so as to form fins. centering.
  • the elastic member 5 exerts its force on the transverse axes 20 and 26, and consequently on the rod 19 by means of the rods 17 on the one hand and on lever 6 on the other hand.
  • the same moment of force exerted by the spring 5 therefore applies on the one hand to maintain the lateral jaws 2 in a tight position against the sole of the ski boot C and on the other hand on the sole clamp 29 of the lever 6 acting on the edge of the heel T of said shoe.
  • the axis 23 and the countersinks 28 play no role.
  • the lever 6 In the open position, the lever 6 is almost horizontal, the axis 26 being located below the fixed axis 22, and the heel T of the shoe C is completely released from the sole clamp 29 of the lever 6.
  • the spring 5 is in its compressed position, while the axis 18 of the bent rods 17 is located in front of the fixed axes 27 of pivoting of these rods so that the rod 9 is also moved forward and thus causes the opening of the jaws 2 allowing the complete release of the shoe.
  • the complete release of the shoe C is further clearly facilitated by the feature described above of the base plate 31 which has at its front end an elastically deformable portion 31 '.
  • this portion 31 ′ can be deformed by crushing both longitudinally forward and transversely from one side or the other downward, thus providing the front of the shoe with a favorable sliding slope, friction and jamming between the sole and the base plate are very greatly reduced and the release of the shoe facilitated.
  • the binding is directly ready to be fitted automatically.
  • the automatic footwear member 30 (step-in), which is in one piece with the lever 6, can be actuated by pressing from top to bottom of the heel T of the shoe C.
  • the lever 6 is pivoted around the fixed axis 22 and the axes 26 moved upwards by pivoting the spring housing 21, 24 around the axis 20 at first.
  • the spring housing 21, 24 pivots about this axis 23, and the axis 20 is moved down to the position toggle described previously.
  • the difference in dimensions between the millings 28 and the fixed axes 23 constitutes a clearance allowing the fitting of the binding even with an excess of snow or ice, under the sole, laterally between the jaws and the sole or at the rear between that -this and the sole clamp of the heel, this play thus serving to automatically compensate for said excess thickness.
  • the rod mechanism 9- rods 10, 11 - arm 7 - jaws 2 is similar to that described in patent applications EP 0 084 813 and EP 0 085 313, except for the fact that the arms 7 are pivoted on pins 8 situated in front of the jaws 2.
  • opening-closing mechanisms of the side jaws can be used in the present invention than that described above by way of example, for example a mechanism with retractable jaws as described in patent FR 2,420. 358.
  • heel piece comprising an elastic energy storage member and a lever combined with a sole clamping member
  • it may also be different from that described above by way of example.
  • the actuation lever can be formed from two parts 6a, 6b both mounted to pivot on the fixed axis 22 on the one hand and cooperating on the other hand with the axis 26 secured to the housing -spring 24.
  • the upper part 6a of the lever further comprises an opening 26 'in which said axis 26 can move, so that there is a clearance between the two parts 6a and 6b allowing the upper part 6a of the lever to be, in the open position of the binding, no longer in a horizontal position, as shown in FIG. 3, but slightly inclined upwards relative to this position, the axis 26 then being in abutment with the lower wall of the 'opening 26'.
  • FIGS. 5 and 6 A first variant of the heel piece is illustrated in FIGS. 5 and 6.
  • the lever 36 is articulated at the end of one of the arms of angled links 37 by means of transverse axes 38, the links 37 being pivotally mounted at their bent portion on axes 39 fixed transversely in the walls of a main housing 40.
  • the connecting rods 37 further comprise an axis 41 cooperating with the fork 19 which has the rear end of the rod 9, this rod being as previously intended to actuate the opening and closing of the side jaws (not shown).
  • a spring housing formed by two parts 42, 43 sliding one inside the other and containing a helical spring (not shown) is pivotally mounted by its rear part 42 around axes 44 fixed in the walls of the housing. main 40.
  • the front part 43 of the spring-housing is articulated on the lever 36 by means of a transverse axis 45.
  • the rod 9 moves forward under the action of the opening of the jaws by rotating the links 37 on the axes 39.
  • the links 37 transmit their force on the lever 36 through the axis 38, to rotate it around this axis, and act on the axis 45 to compress the spring contained in the spring housing 42, 43; this movement continues until the tilting position described above is reached, then the open position ( Figure 6).
  • the mechanism works initially by applying a force from top to bottom on the lever 36 (for example with the tip of a stick) in the same way as in the case described above of the fall before “pure”.
  • the lever 50 in the service position, is pivotally mounted directly on an axis 51 fixed on the walls of the main housing 52 and is provided with an axis 53 cooperating with the fork 19 that has l rear end of the rod 9 for actuating the side jaws (not shown).
  • a spring box formed as in the first variant, of two parts 54, 55 sliding one inside the other and containing a spring (not shown) of energy accumulation, is pivotally mounted by its part rear 55 on an axis 56 fixed in the walls of the housing 52, the front part 54 of this spring housing 8 being articulated on the lever 50 by means of an axis 57.
  • a sole-clamping element 58 is pivotally mounted on the fixed axis 51, the pivoting movement of this element being limited by the presence of a stop 59 integral with the lever 50.
  • the lever 50 is also provided with a clamping finger 60 subjected to the action of a spring 61, the force of which can be adjusted by means of a nut 62; the finger 60 slides obliquely on the lever 50 so as to come into the service position press under the action of the spring 61 on the sole clamp element 58, itself pressing on the upper edge of the heel T of the ski boot vs.
  • this second variant is similar to that of the embodiments described above, the tilting position being reached when the axes 51, 57 and 56 are located in one and the same plane.
  • the force tending to lift the heel T acts initially on the finger 60 through the sole clamp 58. It is only when the finger 60 is fully retracted against the action of the spring 61 and that the sole clamp 58 abuts against the lever 50, that the latter begins to pivot around the fixed axis 54 and to move the articulation axis 57, compressing the housing - spring 54.55, up to the tipping point.
  • the open position is reached once the tipping point has been passed.
  • this comprises jaws 62 carried by arms 63, the pivot axis 64 of which on the upper surface of the ski S is situated behind said jaws 62.
  • Each of these jaws 62 has a front claw 62a and a rear claw 62b, cooperating in the closed service position (see FIG. 1) with imprints corresponding to the shape of said claws and which has the sole of the ski boot C.
  • the lateral jaws 62 are connected to a heel piece 65 by means of a rod 66 and a system of articulated links 10, 11.
  • the front end 31 ′ of the base plate 31 intended to receive the shoe C is cantilevered above a space filled with a plastic foam 34; in addition, the upper face of this elastically deformable front end 31 ′ is provided with a sliding plate 67, for example made of Teflon, favoring the. release of the ski boot C.
  • a positioning stop 68 is slidably mounted longitudinally in front of the base plate 31 and can be fixed in a determined position by means of a fixing screw 69.
  • the heel piece 65 it consists of a variant of that illustrated in FIGS. 5 and 6.
  • the spring case also formed from two parts 70, 71 sliding one inside the other and containing a helical spring 72, is pivotally mounted on its rear part 70 around axes 73 fixed in the walls of the main housing 74 of the heel piece 65.
  • the front part 71 of the spring housing is articulated on the actuating lever 75 pivotally mounted on an axis 76 fixed transversely in the walls of the case 74 of the heel piece 65, by means of a triangular link 77.
  • the triangular link 77 is therefore articulated by its angles on the front end of the front part 71 of the spring housing, on the actuation lever 75 and on one of the ends of the angled link 78, by the respective pivot axes 79 , 80.81.
  • the angled rods 78 serving as rockers, are pivoted on axes 82 fixed in the walls of the housing 74, and have at their other end a transverse axis 83 engaged with a fork 66 'which has the rear end of the rod 66 .
  • a sole clamping element 84 is fixed to the lever 75 and pivots with it around the axis 76; this sole-clamping element 84 is also integral with said lever 75 by the axis 80, however a clearance is provided between this axis 80 and the sole-clamping element 84 (in dotted lines in FIG. 8) so as to allow, as in the previous embodiments, the operation of the binding even in the presence of a thin layer of ice or snow between the sole of the shoe C and the base plate 31, or even between the sole-clamping element 84 and the upper edge of the heel T.
  • this embodiment also includes an automatic shoeing mechanism (“step-in”) combined with a brake or stop.
  • step-in is formed of two lateral branches 85 connected by a spring loop 86, the latter being surmounted by a horizontal support plate 87.
  • the lateral branches 85 are held on each side by two cylindrical axes 88 mounted transversely in the side walls of the housing 74.
  • Each cylindrical axis 58 has on its external surface a helical rib 89 cooperating with a groove formed inside the passage through the enclosure wall 74. so that the axes move transversely in the passages made in the walls of the housing 74 while turning on themselves.
  • the step-in mechanism works as follows: in the open fitting position, the cylindrical axes 88 are in the position furthest from each other (FIG. 12) under the combined action of the buckle- spring 86 and a spring 90 disposed transversely between the two axes 88; in this open position, the lateral branches 85 are separated towards the outside of the ski and protrude under the sole thereof, while the loop 86 and the plate 87 are above the upper surface of the ski.
  • each of these jaws has two separate parts; on the one hand a front part 2a folded inwards and from the bottom upwards with an acute angle of approximately 30 ° relative to the plane of the ski, and on the other hand a rear part 2b which is substantially vertical and forms with the longitudinal axis of the ski an obtuse angle of approximately 70 °.
  • the front part 2a of the jaws is intended to ensure the lateral retention of the boot (against torsional forces), and to maintain the boot C on the ski against the forces of rear fall on the one hand and partially of front fall (in combination with the heel clamp 29).
  • the rear part 2b plays the role of longitudinal centering means of the shoe C, in opposition with the sole clamp 29 of the heel piece; this substantially vertical posterior part 2b does not hinder the release of the shoe in the event of a "pure" front fall, since the jaws in this case move outward to allow immediate release towards the front of the shoe.
  • FIGS. 17 and 18 illustrate an embodiment of the ski boot C, the sole of which has in its middle portion an imprint forming an opening 93 and a cleat 94, the latter having a face inclined at about 30 ° from bottom to top and from outside to inside.
  • the imprint is preferably produced during manufacture with the sole, and the inclined face of the cleat 94 is intended to cooperate with the part 2a of the clamping jaw of the binding.
  • the imprint 93 made in the sole also has a longitudinal rib 95 with conical walls 95 'on each side, the inclination going from bottom to top and from the inside to the outside (see Figure 18). , therefore having a cross-section in the shape of a V.
  • the conical walls 95 ′ serve to facilitate the ejection of the jaw 2 coming after the release of the latter from the cleat 94, l 'anterior edge of the front portion 2a of said jaw indeed coming into abutment with the conical wall 95'.
  • FIGS. 19 and 20 is illustrated a first variant of the support plate 31.
  • the support plate 31 is provided with “Teflon 96” plates fixed on its upper surface, more particularly at the level of the lateral jaws 2 and on its anterior end.
  • At least the front portion 31 'of the support plate 31 is made of a spring material, of the "De lr i n " type for example, so that this front portion 31' in overhang is flexible and deformable like a spring plate.
  • the lateral guide element 32 pivotally mounted on a screw 35 is subjected to the action of two leaf springs 97.
  • an adjustable stop 98 is slidably mounted longitudinally in front of the support plate 31, a fixing screw 99 cooperating with orifices made in the horizontal part of this stop 98.
  • This stop 98 the adjustment of which is carried out according to the size of the boot to be fixed on the ski, is only intended to facilitate for the skier the longitudinal position of the shoe on the binding.
  • the sole of the shoe (not shown) therefore rests on three slightly raised surfaces, namely the two “Teflon 66” plates and the lateral guide element 32.
  • the friction with the sole is therefore limited to these three surfaces, and the release of the shoe in the event of a combined torsional-front-torsional-rear fall is facilitated.
  • the possibility of elastic deformation downwards and laterally of the anterior portion 31 ′ of the support plate 31 makes it possible to reduce the lever arms and thus to reduce the combined torque by approximately 20% compared to a plate- classic support not elastically deformable.
  • the support plate 100 is pivotally mounted around a screw 101 provided at the rear of said plate, this rear portion 100 'being moreover provided with lateral fins 102 serving as lateral guide elements.
  • the shoe can be easily released by the pivoting of the entire plate 100 covering the actuation mechanism of the side jaws 2.
  • the pivoting support plate 100 is automatically brought back into position by the jaws 2.
  • the binding according to the invention therefore allows a very significant reduction in the sum of the stresses undergone by the skier's leg during falls known as “combined front or rear with torsion by the fact that the different components of the opening forces torsion and falls in before for example, share the work of triggering a single retaining mechanism and no longer two as is the case with a classic binding with front stop and heel.
  • the forward fall forces causing the opening of the heel also lead to the opening of the jaws of the torsion restraint system, thereby reducing the torsional torque accordingly.
  • the binding according to the invention has the advantage, commercially, and also with a view to its use on rental skis, that the binding mechanism comprising three clamping zones, namely two lateral zones and one rear, allows the boot on the same binding installed on a ski of shoes of different sizes. Only the distance between the heel and the lateral jaws must be standardized and correspond to that between the heel and the lateral cleats of the sole of the shoes.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to a safety binding of a boot on a ski which comprises two lateral jaws (2) mounted for movement under the force of an elastic member (5) between a closed service position in which these jaws coact with the sole of the boot (C) and an open position. It also comprises structure (3) interacting with the heel of the ski boot and having a sole grip member (29) mounted for movement by the force of the same elastic member between a service position in which this member maintains the rear end of the sole of the boot on the ski and an open position, the whole being so arranged that the opening or the closing of the lateral jaws effects the opening or the closing respectively of the sole grip member, and vice versa.

Description

La présente invention se rapporte à une fixation de sécurité d'une chaussure sur un ski, et plus particulièrement à une fixation de sécurité comportant notamment des mâchoires latérales destinées à maintenir en position de service la chaussure sur un ski.The present invention relates to a safety binding of a boot on a ski, and more particularly to a safety binding comprising in particular lateral jaws intended to hold the boot in the service position on a ski.

Le principe des fixations à mâchoires latérales est connu depuis plusieurs années, notamment par FR-A-1. 411. 638 et FR-A-2. 021. 237, mais n'a jusqu'à présent pas abouti à des réalisations suffisamment fiables pour être commercialisées. Des améliorations ont été apportées par exemple pour améliorer le dégagement de la chaussure en cas d'ouverture de sécurité de la fixation, comme décrit dans FR-A-2. 420.358, ou bien pour améliorer le fonctionnement même de ce type de fixations et leur donner une fiabilité plus grande en cas de chute, comme divulgué dans les demandes de brevets européens de la même titulaire respectivement EP-A-0 084 813 et EP-A-0 085 313.The principle of lateral jaw fasteners has been known for several years, in particular by FR-A-1. 411. 638 and FR-A-2. 021. 237, but has so far not resulted in products which are sufficiently reliable to be marketed. Improvements have been made for example to improve the clearance of the boot in the event of the safety opening of the binding, as described in FR-A-2. 420.358, or else to improve the very functioning of this type of binding and give it greater reliability in the event of a fall, as disclosed in the European patent applications of the same owner respectively EP-A-0 084 813 and EP-A -0 085 313.

Il ressort de tests récents que la répartition des cinq causes principales d'accidents dus à la pratique du ski sur neige est la suivante :

Figure imgb0001
Recent tests show that the distribution of the five main causes of accidents due to skiing on snow is as follows:
Figure imgb0001

Les fixations de sécurité actuellement commercialisées avec butée avant et talonnière sont construites pour permettre le dégagement de la chaussure en cas de torsion et de chute avant, la chute arrière n'étant pas ou mal protégée par un dégagement possible.The safety bindings currently sold with front stop and heel are built to allow the release of the shoe in the event of torsion and front fall, the rear fall is not or poorly protected by a possible release.

On constate donc que les risques importants sont provoqués par les chutes combinées de torsion en association avec une chute avant ou une chute arrière, ces deux facteurs de risque représentant à eux seuls près de 56 % des accidents. Les raisons de ces causes d'accidents sont dues essentiellement aux frottements parasitaires des extrémités de la chaussure lors de chutes combinées avant et torsion, ceux- ci créant un couple supplémentaire en torsion de l'ordre de 3 à 4 mDan venant s'ajouter au couple de torsion préréglé par la butée de la fixation. De plus, le vrillage transversal de la chaussure par rapport à l'axe longitudinal engendre, lors de chutes combinées, des coincements entre la chaussure et les mâchoires de butée avant qui provoquent également une augmentation du couple de torsion. Le couple total ainsi engendré atteint largement les valeurs critiques de résistance de la jambe du skieur. Le même phénomène se produit également lors de chutes combinées arrière-torsion.It can therefore be seen that the significant risks are caused by combined torsional falls in association with a front fall or a rear fall, these two risk factors alone representing almost 56% of accidents. The reasons for these causes of accidents are essentially due to parasitic friction of the ends of the shoe during combined falls before and torsion, these creating an additional torque in torsion of the order of 3 to 4 mDan adding to the torsional torque preset by the fixing stop. In addition, the transverse twist of the shoe relative to the longitudinal axis generates, during combined falls, wedges between the shoe and the front stop jaws which also cause an increase in the torque. The total torque thus generated largely reaches the critical resistance values of the skier's leg. The same phenomenon also occurs during combined rear-torsion falls.

L'inconvénient précité a été partiellement supprimé dans la fixation de sécurité divulguée par le brevet CH-A-506. 304, qui comporte une butée avant de type traditionnel et une talonnière combinées mécaniquement, de telle sorte qu'une traction exercée sur l'organe d'appui de la talonnière diminue la force nécessaire au déclenchement de la butée. Toutefois, cette réalisation, techniquement complexe et peu satisfaisante en pratique, n'est pas directement applicable au cas des fixations de sécurité à mâchoires latérales.The aforementioned drawback has been partially eliminated in the safety fastener disclosed by patent CH-A-506. 304, which comprises a front stop of the traditional type and a heel piece mechanically combined, so that a traction exerted on the support member of the heel piece decreases the force necessary for triggering the stop. However, this embodiment, technically complex and unsatisfactory in practice, is not directly applicable in the case of safety fasteners with side jaws.

Le but de la présente invention consiste donc à fournir une fixation de sécurité qui remédie aux inconvénients précités des fixations de sécurité connues avec butée avant et talonnière, en créant les conditions telles que la fixation soit capable de neutraliser complètement le couple de torsion supplémentaire dû aux frottements parasitaires et que les effets de coincement dus au vrillage de la chaussure dans la butée avant soient supprimés.The aim of the present invention therefore consists in providing a safety binding which overcomes the aforementioned drawbacks of known safety bindings with front stop and heel piece, by creating the conditions such that the binding is capable of completely neutralizing the additional torque due to parasitic friction and that the effects of jamming due to the twisting of the shoe in the front stop are eliminated.

Ce but est atteint par la fixation de sécurité d'une chaussure sur un ski, objet de l'invention, qui comporte deux mâchoires latérales montées déplaçables sous l'action d'un organe élastique dans un plan parallèle à celui du ski, entre une position de service fermée dans laquelle ces mâchoires coopèrent avec la semelle de la chaussure et une position ouverte dans laquelle celle-ci est libérée, et qui est caractérisée par le fait qu'elle comporte une talonnière présentant un élément serre-semelle monté déplaçable sous l'action du même organe élastique dans un plan longitudinal perpendiculaire au plan du ski, entre une position de service dans laquelle ledit élément maintient l'extrémité arrière de la semelle de la chaussure sur le ski et une position ouverte dans laquelle celle-ci est libérée, le tout agencé de telle sorte que l'ouverture, respectivement la fermeture, des mâchoires latérales ou de l'élément serre-semelle provoque l'ouverture, respectivement la fermeture, de l'élément serre-semelle ou des mâchoires latérales.This object is achieved by the safety fastening of a boot on a ski, object of the invention, which comprises two lateral jaws mounted movable under the action of an elastic member in a plane parallel to that of the ski, between a closed service position in which these jaws cooperate with the sole of the shoe and an open position in which the latter is released, and which is characterized by the fact that it comprises a heel piece having a sole-clamping element mounted movable under the action of the same elastic member in a longitudinal plane perpendicular to the plane of the ski, between a service position in which said element maintains the rear end of the sole of the boot on the ski and an open position in which the latter is released , the whole arranged so that the opening, respectively the closing, of the lateral jaws or of the sole-clamping element causes the opening, respectively the closing, of the element soleplate or side jaws.

Ainsi, grâce à la liaison mécanique des deux systèmes de maintien de la chaussure sur le ski (comprenant en tout 3 points d'appui), les efforts exercés en cas de chute combinée sur les mâchoires latérales (torsion) et sur le serre-semelle (chute avant) agissent dans le même sens et s'additionnent pour provoquer l'ouverture de la fixation, le couple de torsion étant donc diminué et ladite ouverture facilitée par la combinaison des deux types d'efforts.Thus, thanks to the mechanical connection of the two systems for holding the boot on the ski (comprising a total of 3 support points), the forces exerted in the event of a combined fall on the lateral jaws (torsion) and on the sole clamp (fall before) act in the same direction and add up to cause the opening of the binding, the torque is therefore reduced and said opening facilitated by the combination of the two types of force.

En outre, cette invention a également pour objet une chaussure de ski destinée à être fixée sur un ski au moyen de la fixation de sécurité définie ci-dessus, et qui est caractérisée par le fait qu'elle comporte une semelle présentant des empreintes coopérant en position de service avec les mâchoires latérales de la fixation.In addition, this invention also relates to a ski boot intended to be fixed on a ski by means of the safety binding defined above, and which is characterized in that it comprises a sole having imprints cooperating in service position with the side jaws of the binding.

Le dessin annexé illustre schématiquement et à titre d'exemples l'invention.

  • Les figures 1 et 2 sont des vues respectivement en coupe longitudinale et en plan d'une forme d'exécution de la fixation en position de service fermée. La figure 1' représente une vue latérale d'une variante du levier d'actionnement.
  • Les figures 3 et 4 sont des vues respectivement de côté et en plan de la forme d'exécution selon les figures 1 et 2 en position ouverte.
  • Les figures 5 et 6 sont des vues latérales d'une première variante de la talonnière respectivement en position fermée de service et en position ouverte. La figure 7 est une vue latérale d'une seconde variante de la talonnière en position fermée de service. Les figures 8 et 9 sont des vues respectivement en coupe longitudinale et en plan d'une autre forme d'exécution de la fixation représentée en position fermée. Les figures 10 et 11 sont des vues respectivement de côté partiellement en coupe et de dessus de la talonnière de la fixation selon les figures 8 et 9 représentée en position ouverte.
  • Les figures 12 et 13 sont des vues partiellement en coupe horizontale de détails du mécanisme de step-in de la fixation selon les figures 8 et 9.
  • Les figures 14,15 et 16 sont des vues respectivement de côté, en coupe transversale et en plan (avec coupe partielle selon la ligne X-X) d'une réalisation des mâchoires latérales de la fixation.
  • La figure 17 est une vue partielle en perspective d'une chaussure destinée à être fixée sur un ski au moyen de la fixation selon l'invention, et la figure 18 est une vue partielle de dessous de la semelle de cette chaussure.
  • Les figures 19,20 et 21,22 sont des vues respectivement latérale et en plan d'une première et d'une seconde réalisation de la plaque de support associée à la fixation selon l'invention.
The accompanying drawing illustrates schematically and by way of examples the invention.
  • Figures 1 and 2 are views respectively in longitudinal section and in plan of a shape of execution of the fixing in the closed service position. Figure 1 'shows a side view of a variant of the actuating lever.
  • Figures 3 and 4 are respectively side and plan views of the embodiment according to Figures 1 and 2 in the open position.
  • Figures 5 and 6 are side views of a first variant of the heel respectively in the closed service position and in the open position. Figure 7 is a side view of a second variant of the heel in the closed service position. Figures 8 and 9 are views respectively in longitudinal section and in plan of another embodiment of the fastener shown in the closed position. Figures 10 and 11 are respectively side views partially in section and from above the heel of the binding according to Figures 8 and 9 shown in the open position.
  • Figures 12 and 13 are views partially in horizontal section of details of the step-in mechanism of the binding according to Figures 8 and 9.
  • Figures 14,15 and 16 are views respectively from the side, in cross section and in plan (with partial section along line XX) of an embodiment of the lateral jaws of the binding.
  • FIG. 17 is a partial perspective view of a shoe intended to be fixed on a ski by means of the binding according to the invention, and FIG. 18 is a partial view from below of the sole of this shoe.
  • Figures 19,20 and 21,22 are respectively side and plan views of a first and a second embodiment of the support plate associated with the fixing according to the invention.

En référence tout d'abord aux figures 1 à 4, une forme d'exécution de la fixation selon l'invention sera décrite en détails. Cette fixation, fixée par exemple par vissage sur la surface supérieure d'un ski S, comporte deux parties reliées mécaniquement l'une à l'autre, d'une part un dispositif avant 1 de retenue en torsion de la chaussure de ski C et comprenant notamment deux mâchoires latérales 2, et d'autre part un dispositif arrière 3 de retenue longitudinale (pour chutes avant et arrière) ou talonnière, qui comprend notamment un boîtier 4, dans lequel est monté un organe élastique 5, et un levier d'actionnement 6 servant également de moyen de serrage du talon T de la chaussure C en position de service sur le ski.With reference first to Figures 1 to 4, an embodiment of the binding according to the invention will be described in detail. This binding, fixed for example by screwing on the upper surface of a ski S, comprises two parts mechanically connected to each other, on the one hand a front device 1 for retaining the ski boot C in torsion and comprising in particular two lateral jaws 2, and on the other hand a rear device 3 for longitudinal retention (for front and rear falls) or heel piece, which in particular comprises a housing 4, in which is mounted an elastic member 5, and a lever actuation 6 also serving as a means of tightening the heel T of the boot C in the service position on the ski.

Les deux dispositifs respectivement avant 1 et arrière 3 sont couplés mécaniquement, de telle sorte que l'organe élastique 5 d'accumulation d'énergie actionne ces deux dispositifs et que l'ouverture, respectivement la fermeture, de l'un des dispositifs provoque l'ouverture, respectivement la fermeture, de l'autre dispositif, et réciproquement.The two devices respectively front 1 and rear 3 are mechanically coupled, so that the elastic member 5 of energy accumulation actuates these two devices and that the opening, respectively closing, of one of the devices causes the opening, respectively closing, of the other device, and vice versa.

Comme illustré sur les figures 1, 2 et 4, le dispositif avant 1 comporte deux bras 7 portant les mâchoires 2 et montés pivotants chacun autour d'un pivot vertical 8 de manière à pouvoir se déplacer parallèlement à la surface du ski S entre une position fermée de service (figures 1 et 2), les mâchoires 2 en serrant dans cette position les rebords latéraux de la portion médiane de la chaussure de ski C, et une position ouverte (figure 3) dans laquelle ladite chaussure est libérée. Le déplacement précité est provoqué par l'action de l'organe élastique 5 de la talonnière 3 auquel les bras 7 sont reliés par l'entremise d'une tringle 9 coulissant longitudinalement.As illustrated in FIGS. 1, 2 and 4, the front device 1 comprises two arms 7 carrying the jaws 2 and mounted pivoting each around a vertical pivot 8 so as to be able to move parallel to the surface of the ski S between a position closed service (Figures 1 and 2), the jaws 2 by clamping in this position the side edges of the middle portion of the ski boot C, and an open position (Figure 3) in which said boot is released. The aforementioned displacement is caused by the action of the elastic member 5 of the heel piece 3 to which the arms 7 are connected by means of a rod 9 sliding longitudinally.

L'extrémité antérieure de cette tringle 9 est reliée aux bras 7 portant les mâchoires latérales 2 au moyen de deux paires de biellettes 10, 11. Chaque paire de biellettes comprend une première biellette droite 10 dont une extrémité est articulée à l'extrémité de la tringle 9 et l'autre extrémité est articulée sur une seconde biellette coudée 11, au moyen de tétons d'articulation 12, 13. Celle-ci est montée pivotante au niveau de sa portion coudée sur un pivot vertical 14 solidaire de la surface supérieure du ski et présente une ouverture allongée 15 avec laquelle coopère un téton d'articulation 16 solidaire du bras 7, de manière à permettre l'ouverture latérale des mâchoires 2 sous l'effet d'un mouvement longitudinal de translation de la tringle 9 vers l'avant.The front end of this rod 9 is connected to the arms 7 carrying the lateral jaws 2 by means of two pairs of rods 10, 11. Each pair of rods comprises a first straight rod 10, one end of which is articulated at the end of the rod 9 and the other end is articulated on a second bent link 11, by means of articulation pins 12, 13. This is pivotally mounted at its bent portion on a vertical pivot 14 secured to the upper surface of the ski and has an elongated opening 15 with which cooperates a hinge pin 16 secured to the arm 7, so as to allow the lateral opening of the jaws 2 under the effect of a longitudinal movement of translation of the rod 9 towards the before.

L'extrémité postérieure de la tringle 9 est d'autre part reliée à l'organe élastique 5 que présente la talonnière 3 par l'entremise de biellettes coudées 17 dont une extrémité est munie d'un axe transversal 18 coopérant avec une fourchette 19 que présente l'extrémité arrière de ladite tringle 9. L'autre extrémité des biellettes coudées 17 est munie d'un axe transversal 20 pivoté dans l'une des parties 21 d'un boîtier-ressort faisant partie de la talonnière 3.The rear end of the rod 9 is on the other hand connected to the elastic member 5 that has the heel piece 3 by means of bent rods 17, one end of which is provided with a transverse axis 18 cooperating with a fork 19 that has the rear end of said rod 9. The other end of the bent rods 17 is provided with a transverse axis 20 pivoted in one of the parts 21 of a spring case forming part of the heel piece 3.

Le dispositif arrière ou talonnière 3 comporte un boîtier 4 fixé sur le ski S dans les parois duquel est fixé un axe 22 sur lequel le levier d'actionnement 6 est monté pivotant. En outre, la talonnière 3 comporte encore un boîtier-ressort monté pivotant autour de deux axes transversaux 23 fixés dans les parois du boîtier 4, le boîtier-ressort étant formé de deux parties 21, 24 coulissant l'une dans l'autre de manière à agir comme un piston pour comprimer l'organe élastique 5, ici un ressort hélicoïdal, la force de celui-ci étant ajustable au moyen d'une vis de réglage 25 accessible depuis l'arrière de la talonnière 3. L'autre partie 24 du boîtier-ressort est articulée sur le levier 6 au moyen d'un axe 26. Enfin, les biellettes coudées 17 sont montées pivotantes au niveau de leur portion coudée sur des axes 27 fixés dans les parois du boîtier 4.The rear or heel device 3 comprises a housing 4 fixed to the ski S in the walls of which is fixed a pin 22 on which the actuation lever 6 is pivotally mounted. In addition, the heel piece 3 also comprises a spring case mounted pivoting about two transverse axes 23 fixed in the walls of the case 4, the spring case being formed of two parts 21, 24 sliding one inside the other so to act as a piston to compress the elastic member 5, here a helical spring, the force of the latter being adjustable by means of an adjustment screw 25 accessible from the rear of the heel piece 3. The other part 24 of the spring housing is articulated on the lever 6 by means of an axis 26. Finally, the bent connecting rods 17 are pivotally mounted at their bent portion on axes 27 fixed in the walls of the housing 4.

Dans la paroi de la partie 24 du boîtier-ressort articulée sur le levier 6 sont pratiquées deux fraisures 28, les axes fixes de pivotement 23 dudit boîtier-ressort 21, 24 se trouvant en position de service (figure 1) au centre de ces fraisures 28, dont les dimensions sont supérieures à celles des axes fixes 23.In the wall of the part 24 of the spring housing articulated on the lever 6 are made two millings 28, the fixed pivot axes 23 of said spring housing 21, 24 being in the service position (Figure 1) in the center of these millings 28, the dimensions of which are greater than those of the fixed axes 23.

En outre, le levier 6 présente un serre-semelle 29. appuyant en position de service sur le rebord supérieur du talon T de la chaussure de ski C (figure 1) de manière à maintenir celle-ci sur le ski S. en combinaison avec les deux mâchoires latérales 2. Le levier 6 présente également un organe 30 de chaussage automatique (« step-in •) dont le fonctionnement sera décrit plus loin.In addition, the lever 6 has a sole clamp 29. pressing in the service position on the upper edge of the heel T of the ski boot C (Figure 1) so as to maintain the latter on the ski S. in combination with the two lateral jaws 2. The lever 6 also has a member 30 for automatic footing ("step-in"), the operation of which will be described later.

Enfin, dans la forme d'exécution illustrée, la fixation de sécurité comporte encore une plaque de base 31 et un élément de guidage latéral 32.Finally, in the illustrated embodiment, the safety attachment also comprises a base plate 31 and a lateral guide element 32.

La plaque de base 31 est fixée, par exemple par vissage, sur la surface supérieure du ski S et est destinée à servir de logement aux éléments mécaniques mobiles de la fixation, notamment les bras 7 portant les mâchoires, la tringle d'actionnement 9 et les deux jeux de biellettes d'articulation 10, 11, et à recevoir sur sa face supérieure la semelle de la chaussure de ski. Cette plaque de base 31 a la particularité de présenter à son extrémité antérieure une portion déformable 31' en porte à-faux et soumise à une action élastique tendant à maintenir cette portion parallèle à la surface du ski S. Dans l'exemple illustré, l'action élastique est exercée par deux petits ressorts hélicoïdaux 33, l'espace compris entre la surface supérieure du ski et la portion déformable 31' étant de plus rempli d'une mousse plastique 34, de préférence à cellules fermées souples, afin d'éviter la formation de glace ou la présence de neige ou autres matériaux dans cet espace. De préférence, au moins la portion déformable 31' de la plaque de base 31 est munie sur sa face supérieure d'un revêtement destiné à améliorer le coefficient de frottement avec la semelle de la chaussure C, par exemple un revêtement en « Téflon ».The base plate 31 is fixed, for example by screwing, to the upper surface of the ski S and is intended to serve as a housing for the mobile mechanical elements of the binding, in particular the arms 7 carrying the jaws, the actuating rod 9 and the two sets of articulation rods 10, 11, and to receive on its upper face the sole of the ski boot. This base plate 31 has the particularity of presenting at its front end a deformable portion 31 'in cantilever and subjected to an elastic action tending to keep this portion parallel to the surface of the ski S. In the example illustrated, l 'elastic action is exerted by two small helical springs 33, the space between the upper surface of the ski and the deformable portion 31' being further filled with a plastic foam 34, preferably with flexible closed cells, in order to avoid ice formation or the presence of snow or other materials in this space. Preferably, at least the deformable portion 31 ′ of the base plate 31 is provided on its upper face with a coating intended to improve the coefficient of friction with the sole of the shoe C, for example a coating in “Teflon”.

L'élément de guidage latéral 32 est formé d'une lame transversale montée pivotante sur la plaque de base 31 au moyen d'une vis 35 passant par son centre, les extrémités de la lame étant pliées sensiblement verticalement de manière à former des ailettes de centrage.The lateral guide element 32 is formed by a transverse blade pivotally mounted on the base plate 31 by means of a screw 35 passing through its center, the ends of the blade being bent substantially vertically so as to form fins. centering.

Dans la position de service fermée illustrée sur les figures 1 et 2, l'organe élastique 5 exerce sa force sur les axes transversaux 20 et 26, et par conséquent sur la tringle 19 par l'intermédiaire des biellettes 17 d'une part et sur le levier 6 d'autre part. Le même moment de force exercé par le ressort 5 s'applique donc d'une part pour maintenir les mâchoires latérales 2 en position serrée contre la semelle de la chaussure de ski C et d'autre part sur le serre-semelle 29 du levier 6 agissant sur le rebord du talon T de ladite chaussure. Dans cette position de service, l'axe 23 et les fraisures 28 ne jouent aucun rôle.In the closed service position illustrated in FIGS. 1 and 2, the elastic member 5 exerts its force on the transverse axes 20 and 26, and consequently on the rod 19 by means of the rods 17 on the one hand and on lever 6 on the other hand. The same moment of force exerted by the spring 5 therefore applies on the one hand to maintain the lateral jaws 2 in a tight position against the sole of the ski boot C and on the other hand on the sole clamp 29 of the lever 6 acting on the edge of the heel T of said shoe. In this service position, the axis 23 and the countersinks 28 play no role.

En ce qui concerne l'ouverture de sécurité de la fixation, son fonctionnement peut être décomposé selon deux mouvements en fonction de la nature de la chute provoquant cette ouverture ; cette décomposition est théorique, puisqu'en réalité on ne se trouve qu'exceptionnellement dans le cas d'une chute avant « pure ou d'une torsion « pure », les deux types d'efforts étant pratiquement toujours combinés et simultanés.Regarding the safety opening of the binding, its operation can be broken down into two movements depending on the nature of the fall causing this opening; this decomposition is theoretical, since in reality we are only exceptionally in the case of a fall before "pure" or a "pure" twist, the two types of effort being almost always combined and simultaneous.

Si l'on envisage tout d'abord le cas théorique de la chute avant « pure", celle-ci se traduit par un mouvement vers le haut du talon T de la chaussure de ski C et par là du serre-semelle 29 du levier 6, celui-ci pivotant autour de l'axe 22 en poussant l'axe 26 vers l'arrière. Dans la première phase de ce mouvement, le ressort 5 est comprimé et le boîtier-ressort 21, 24 pivote autour de l'axe 20 ; dans le même temps, la fraisure 28 pratiquée dans la partie 24 du boîtier-ressort se déplace vers le bas. A partir du moment où la paroi supérieure de la fraisure 28 vient en contact avec l'axe fixe 23, le boîtier-ressort 21, 24 pivote alors autour de cet axe 23.If we first consider the theoretical case of the "pure" front drop, this results in an upward movement of the heel T of the ski boot C and thereby of the sole clamp 29 of the lever 6, the latter pivoting around the axis 22 by pushing the axis 26 backwards. In the first phase of this movement, the spring 5 is compressed and the spring housing 21, 24 pivots around the axis 20; at the same time, the countersink 28 in the part 24 of the spring housing moves downwards. As soon as the upper wall of the countersink 28 comes into contact with the fixed axis 23, the housing- spring 21, 24 then pivots about this axis 23.

Le mouvement continue alors, par rotation du levier 6 autour de l'axe fixe 22 et des biellettes coudées 17 autour des axes fixes 27, jusqu'à une position dite « bascule dans laquelle les axes 22, 26, 20 et 27 sont situés sensiblement dans un seul et même plan. Une fois cette position bascule dépassée, le mécanisme se trouve dans la position ouverte illustrée sur les figures 3 et 4.The movement then continues, by rotation of the lever 6 around the fixed axis 22 and the bent rods 17 around the fixed axes 27, to a position called "rocker in which the axes 22, 26, 20 and 27 are located substantially in one and the same plane. Once this tilting position has been exceeded, the mechanism is in the open position illustrated in FIGS. 3 and 4.

Dans la position ouverte, le levier 6 est quasiment horizontal, l'axe 26 étant situé au-dessous de l'axe fixe 22, et le talon T de la chaussure C est complètement dégagé du serre-semelle 29 du levier 6. En outre, le ressort 5 est dans sa position comprimée, alors que l'axe 18 des biellettes coudées 17 est situé en avant des axes 27 fixes de pivotement de ces biellettes de telle sorte que la tringle 9 soit déplacée également vers l'avant et provoque ainsi l'ouverture des mâchoires 2 permettant le dégagement complet de la chaussure. Le dégagement complet de la chaussure C est en outre nettement facilité par la particularité décrite précédemment de la plaque de base 31 qui présente à son extrémité avant une portion déformable élastiquement 31'. En effet, grâce au fait que cette portion 31' peut se déformer en s'écrasant aussi bien longitudinalement vers l'avant que transversalement d'un côté ou de l'autre vers le bas, offrant ainsi à l'avant de la chaussure une pente de glissement favorable, les frottements et coincements entre la semelle et la plaque de base sont très fortement diminués et le dégagement de la chaussure facilité.In the open position, the lever 6 is almost horizontal, the axis 26 being located below the fixed axis 22, and the heel T of the shoe C is completely released from the sole clamp 29 of the lever 6. In addition , the spring 5 is in its compressed position, while the axis 18 of the bent rods 17 is located in front of the fixed axes 27 of pivoting of these rods so that the rod 9 is also moved forward and thus causes the opening of the jaws 2 allowing the complete release of the shoe. The complete release of the shoe C is further clearly facilitated by the feature described above of the base plate 31 which has at its front end an elastically deformable portion 31 '. In fact, thanks to the fact that this portion 31 ′ can be deformed by crushing both longitudinally forward and transversely from one side or the other downward, thus providing the front of the shoe with a favorable sliding slope, friction and jamming between the sole and the base plate are very greatly reduced and the release of the shoe facilitated.

Si l'on envisage maintenant le cas théorique de la chute de torsion « pure •, et en repartant bien entendu de la position de service fermée (figures 1 et 2), le mouvement de torsion de la chaussure C tend à ouvrir les mâchoires 2 en faisant par là avancer la tringle 9 ; dans une première phase, ce déplacement provoque le pivotement des biellettes coudées 17 autour des axes fixes 27 et par conséquent la compression du ressort 5, le boîtier-ressort 21, 24 pivotant d'abord autour de l'axe 26. Simultanément, la fraisure .28 pratiquée dans la partie 24 du boîtier-ressort se déplace vers le haut ; dès que la paroi inférieure de la fraisure 28 vient en contact avec l'axe fixe 23, le boîtier-ressort 21, 24 pivote alors autour de cet axe 23. Ce mouvement provoque le pivotement du levier 6 autour de l'axe fixe 22 jusqu'à la position bascule décrite précédemment. Une fois cette position bascule dépassée, les axes 26 sont déplacés dans la position de la figure 3, et le levier 6 atteint alors sa position horizontale permettant au talon T de la chaussure C d'être dégagé de la pression du serre-semelle 29 dudit levier 6.If we now consider the theoretical case of the “pure” torsional fall, and starting again of course from the closed service position (Figures 1 and 2), the torsional movement of the shoe C tends to open the jaws 2 thereby advancing the rod 9; in a first phase, this displacement causes the bent connecting rods 17 to pivot around the fixed axes 27 and consequently the compression of the spring 5, the spring housing 21, 24 pivoting firstly around the axis 26. Simultaneously, the milling .28 in part 24 of the spring housing moves upwards; as soon as the lower wall of the countersink 28 comes into contact with the fixed axis 23, the spring housing 21, 24 then pivots around this axis 23. This movement causes the lever 6 to pivot about the fixed axis 22 until 'to the rocking position described above. Once this tilting position has been exceeded, the axes 26 are moved to the position in FIG. 3, and the lever 6 then reaches its horizontal position allowing the heel T of shoe C to be released from the pressure of the sole clamp 29 of said lever 6.

Dans la position ouverte illustrée sur la figure 3, la fixation est directement prête à être chaussée automatiquement. En effet, l'organe 30 de chaussage automatique (step-in), qui est d'une pièce avec le levier 6, peut être actionné par pression de haut en bas du talon T de la chaussure C. En appuyant sur cet organe de commande 30 du step-in, le levier 6 est pivoté autour de l'axe fixe 22 et les axes 26 déplacés vers le haut en faisant pivoter le boîtier-ressort 21, 24 autour de l'axe 20 dans un premier temps. Dès le moment où la paroi inférieure de la fraisure 28 entre en contact avec l'axe fixe 23, le boîtier-ressort 21, 24 pivote autour de cet axe 23, et l'axe 20 est déplacé vers le bas jusqu'à la position bascule décrite précédemment. Une fois cette position bascule dépassée, la fixation se ferme automatiquement, c'est-à-dire que la tringle 9 est déplacée dans l'effet du ressort 5 vers l'arrière, ce qui entraîne le serrement des mâchoires 2, et que le serre-semelle 29 du levier 6 vient s'appuyer sur le rebord supérieure du talon T de la chaussure de ski C (figure 1).In the open position illustrated in Figure 3, the binding is directly ready to be fitted automatically. Indeed, the automatic footwear member 30 (step-in), which is in one piece with the lever 6, can be actuated by pressing from top to bottom of the heel T of the shoe C. By pressing this control member 30 of the step-in, the lever 6 is pivoted around the fixed axis 22 and the axes 26 moved upwards by pivoting the spring housing 21, 24 around the axis 20 at first. As soon as the bottom wall of the countersink 28 comes into contact with the fixed axis 23, the spring housing 21, 24 pivots about this axis 23, and the axis 20 is moved down to the position toggle described previously. Once this tilting position is exceeded, the binding closes automatically, that is to say that the rod 9 is moved in the effect of the spring 5 towards the rear, which causes the jaws 2 to be tightened, and that the sole plate 29 of lever 6 comes to rest on the upper edge of the heel T of the ski boot C (FIG. 1).

La différence de dimensions entre les fraisures 28 et les axes fixes 23 constitue un jeu permettant le chaussage de la fixation même avec une surépaisseur de neige ou de glace, sous la semelle, latéralement entre les mâchoires et la semelle ou à l'arrière entre celle-ci et le serre-semelle de la talonnière, ce jeu servant ainsi à compenser automatiquement ladite surépaisseur.The difference in dimensions between the millings 28 and the fixed axes 23 constitutes a clearance allowing the fitting of the binding even with an excess of snow or ice, under the sole, laterally between the jaws and the sole or at the rear between that -this and the sole clamp of the heel, this play thus serving to automatically compensate for said excess thickness.

Dans la forme d'exécution décrite ci-dessus en référence aux figures 1 à 4, le mécanisme tringle 9- biellettes 10, 11 - bras 7 - mâchoires 2 est analogue à celui décrit dans les demandes de brevets EP 0 084 813 et EP 0 085 313, à l'exception du fait que les bras 7 sont pivotés sur des axes 8 situés en avant des mâchoires 2.In the embodiment described above with reference to Figures 1 to 4, the rod mechanism 9- rods 10, 11 - arm 7 - jaws 2 is similar to that described in patent applications EP 0 084 813 and EP 0 085 313, except for the fact that the arms 7 are pivoted on pins 8 situated in front of the jaws 2.

Bien entendu, d'autres mécanismes d'ouverture-fermeture des mâchoires latérales peuvent être utilisés dans la présente invention que celle décrite ci-dessus à titre d'exemple, par exemple un mécanisme avec mâchoires escamotables tel que décrit dans le brevet FR 2.420. 358.Of course, other opening-closing mechanisms of the side jaws can be used in the present invention than that described above by way of example, for example a mechanism with retractable jaws as described in patent FR 2,420. 358.

En ce qui concerne la talonnière comportant un organe élastique d'accumulation d'énergie et un levier combiné à un organe serre-semelle, elle peut être également différente de celle décrite ci-dessus à titre d'exemple.As regards the heel piece comprising an elastic energy storage member and a lever combined with a sole clamping member, it may also be different from that described above by way of example.

Comme illustré sur la figure 1', le levier d'actionnement peut être formé de deux parties 6a, 6b montées toutes deux pivotantes sur l'axe fixe 22 d'une part et coopérant d'autre part avec l'axe 26 solidaire du boîtier-ressort 24. La partie supérieure 6a du levier comporte en outre une ouverture 26' dans laquelle ledit axe 26 peut se déplacer, de telle sorte qu'il existe un jeu entre les deux parties 6a et 6b permettant à la partie supérieure 6a du levier d'être, en position ouverte de la fixation, non plus en position horizontale, comme représenté sur la figure 3, mais légèrement inclinée vers le haut par rapport à cette position, l'axe 26 étant alors en butée avec la paroi inférieure de l'ouverture 26'.As illustrated in FIG. 1 ′, the actuation lever can be formed from two parts 6a, 6b both mounted to pivot on the fixed axis 22 on the one hand and cooperating on the other hand with the axis 26 secured to the housing -spring 24. The upper part 6a of the lever further comprises an opening 26 'in which said axis 26 can move, so that there is a clearance between the two parts 6a and 6b allowing the upper part 6a of the lever to be, in the open position of the binding, no longer in a horizontal position, as shown in FIG. 3, but slightly inclined upwards relative to this position, the axis 26 then being in abutment with the lower wall of the 'opening 26'.

Une première variante de la talonnière est illustrée sur les figures 5 et 6. Dans cette réalisation, le levier 36 est articulé à l'extrémité d'un des bras de biellettes coudées 37 par l'entremise d'axes transversaux 38, les biellettes 37 étant montées pivotantes au niveau de leur portion coudée sur des axes 39 fixés transversalement dans les parois d'un boîtier principal 40. Les biellettes 37 comportent en outre un axe 41 coopérant avec la fourchette 19 que présente l'extrémité arrière de la tringle 9, cette tringle étant comme précédemment destinée à actionner l'ouverture et la fermeture des mâchoires latérales (non montrées).A first variant of the heel piece is illustrated in FIGS. 5 and 6. In this embodiment, the lever 36 is articulated at the end of one of the arms of angled links 37 by means of transverse axes 38, the links 37 being pivotally mounted at their bent portion on axes 39 fixed transversely in the walls of a main housing 40. The connecting rods 37 further comprise an axis 41 cooperating with the fork 19 which has the rear end of the rod 9, this rod being as previously intended to actuate the opening and closing of the side jaws (not shown).

De plus, un boîtier-ressort formé de deux parties 42, 43 coulissant l'une dans l'autre et contenant un ressort helicoïdal (non montré) est monté pivotant par sa partie arrière 42 autour d'axes 44 fixés dans les parois du boîtier principal 40. La partie antérieure 43 du boîtier-ressort est articulée sur le levier 36 par l'entremise d'un axe transversal 45.In addition, a spring housing formed by two parts 42, 43 sliding one inside the other and containing a helical spring (not shown) is pivotally mounted by its rear part 42 around axes 44 fixed in the walls of the housing. main 40. The front part 43 of the spring-housing is articulated on the lever 36 by means of a transverse axis 45.

La description du fonctionnement de cette première variante sera comme précédemment décomposée selon deux types théoriques de chutes.The description of the operation of this first variant will, as previously, be broken down into two theoretical types of falls.

Dans le cas d'une chute théorique avant « pure •, et sous l'action verticale de la chaussure C, l'organe serre-semelle 46 du levier 36 va être poussé vers le haut et faire pivoter le levier 36 autour des axes 38 des biellettes 37 en provoquant la compression de l'organe élastique contenu dans le boîtier-ressort 42, 43 ; le mouvement se poursuit jusqu'au moment où les axes 38, 45 et 44 se retrouvent dans un seul et même plan, c'est-à-dire dans la position dite « bascule •. Une fois cette position dépassée, le mécanisme atteint la position d'ouverture (figure 6) dans laquelle les axes 45 sont situés au-dessous du plan passant par les axes 38 et 44, la tringle 9 d'actionnement des mâchoires latérales étant alors déplacée dans sa position avancée d'ouverture.In the case of a theoretical fall before "pure", and under the vertical action of the shoe C, the sole clamping member 46 of the lever 36 will be pushed upwards and make the lever 36 pivot around the axes 38 rods 37 by causing the compression of the elastic member contained in the spring housing 42, 43; the movement continues until the axes 38, 45 and 44 are found in one and the same plane, that is to say in the so-called "rocking" position. Once this position is exceeded, the mechanism reaches the open position (Figure 6) in which the axes 45 are located below the plane passing through the axes 38 and 44, the rod 9 for actuating the side jaws then being moved in its advanced opening position.

Dans le cas d'une chute théorique torsion « pure », la tringle 9 se déplace vers l'avant sous l'action de l'ouverture des mâchoires en faisant pivoter les biellettes 37 sur les axes 39. Ce faisant, les biellettes 37 transmettent leur effort sur le levier 36 par l'intermédiaire de l'axe 38, pour le faire pivoter autour de cet axe, et agir sur l'axe 45 afin de comprimer le ressort contenu dans le boîtier-ressort 42, 43 ; ce mouvement se poursuit jusqu'à ce que la position bascule décrite ci-dessus soit atteinte, puis la position ouverte (figure 6).In the case of a theoretical “pure” torsional fall, the rod 9 moves forward under the action of the opening of the jaws by rotating the links 37 on the axes 39. In doing so, the links 37 transmit their force on the lever 36 through the axis 38, to rotate it around this axis, and act on the axis 45 to compress the spring contained in the spring housing 42, 43; this movement continues until the tilting position described above is reached, then the open position (Figure 6).

Pour ce qui est de l'ouverture volontaire de la fixation, le mécanisme fonctionne dans un premier temps en appliquant une force de haut en bas sur le levier 36 (par exemple avec la pointe d'un bâton) de la même manière que dans le cas décrit ci-dessus de la chute avant « pure".With regard to the voluntary opening of the binding, the mechanism works initially by applying a force from top to bottom on the lever 36 (for example with the tip of a stick) in the same way as in the case described above of the fall before "pure".

Ensuite, un taquet 47 monté sur le levier 36 vient en butée contre l'axe fixe 39. Dès ce moment, les biellettes 37 et le levier 36 sont solidaires et pivotent ensemble autour de l'axe 39 jusqu'à la position bascule dans laquelle les axes 39, 38, 45 et 44 sont situés dans un seul et même plan ; une fois la position bascule dépassée, le mécanisme atteint la position ouverte illustrée sur la figure 6.Then, a cleat 47 mounted on the lever 36 abuts against the fixed axis 39. From this moment, the links 37 and the lever 36 are integral and pivot together around the axis 39 to the rocking position in which axes 39, 38, 45 and 44 are located in one and the same plane; once the tilting position has been exceeded, the mechanism reaches the open position illustrated in FIG. 6.

En ce qui concerne le chaussage automatique de la fixation (step-in), celui-ci intervient dès que le talon T de la chaussure C vient appuyer sur l'organe de step-in 48 du levier 36 de manière à faire pivoter celui-ci et les bielletes 37 qui lui sont solidaires autour de l'axe 39, en butée contre le taquet 47 ; ainsi, par pivotement la position bascule ci-dessus est atteinte en sens inverse, et le mécanisme se déplace alors de telle sorte que la position de service fermée soit atteinte (figure 5), c'est-à-dire avec le serre-semelle 46 du levier 36 en appui sur le rebord supérieur du talon T de la chaussure C, la tringle 9 étant simultanément déplacée vers l'arrière de manière à fermer les mâchoires latérales (non montrées) sur les côtés de la semelle de ladite chaussure.Regarding the automatic fitting of the binding (step-in), this occurs as soon as the heel T of the shoe C comes to press on the step-in member 48 of the lever 36 so as to rotate the latter and the links 37 which are integral with it around the axis 39, in abutment against the cleat 47; thus, by pivoting the above rocking position is reached in the opposite direction, and the mechanism then moves so that the closed service position is reached (Figure 5), that is to say with the sole clamp 46 of the lever 36 resting on the upper edge of the heel T of the shoe C, the rod 9 being simultaneously displaced towards the rear so as to close the lateral jaws (not shown) on the sides of the sole of the said shoe.

Dans la seconde variante représentée sur la figure 7, en position de service, le levier 50 est monté pivotant directement sur un axe 51 fixé sur les parois du boîtier principal 52 et est muni d'un axe 53 coopérant avec la fourchette 19 que présente l'extrémité arrière de la tringle 9 d'actionnement des mâchoires latérales (non montrées). De plus, un boîtier-ressort, formé comme dans la première variante, de deux parties 54, 55 coulissantes l'une dans l'autre et contenant un ressort (non montré) d'accumulation d'énergie, est monté pivotant par sa partie arrière 55 sur un axe 56 fixé dans les parois du boîtier 52, la partie avant 54 de ce boîtier-ressort 8 étant articulé sur le levier 50 par l'entremise d'un axe 57.In the second variant shown in Figure 7, in the service position, the lever 50 is pivotally mounted directly on an axis 51 fixed on the walls of the main housing 52 and is provided with an axis 53 cooperating with the fork 19 that has l rear end of the rod 9 for actuating the side jaws (not shown). In addition, a spring box, formed as in the first variant, of two parts 54, 55 sliding one inside the other and containing a spring (not shown) of energy accumulation, is pivotally mounted by its part rear 55 on an axis 56 fixed in the walls of the housing 52, the front part 54 of this spring housing 8 being articulated on the lever 50 by means of an axis 57.

Un élément serre-semelle 58 est monté pivotant sur l'axe fixe 51, le mouvement de pivotement de cet élément étant limité par la présence d'une butée 59 solidaire du levier 50. En outre, le levier 50 est encore pourvu d'un doigt de serrage 60 soumis à l'action d'un ressort 61, dont la force peut être ajustée au moyen d'un écrou 62 ; le doigt 60 coulisse obliquement sur le levier 50 de manière à venir en position de service appuyer sous l'action du ressort 61 sur l'élément serre-semelle 58, lui-même appuyant sur le rebord supérieur du talon T de la chaussure de ski C.A sole-clamping element 58 is pivotally mounted on the fixed axis 51, the pivoting movement of this element being limited by the presence of a stop 59 integral with the lever 50. In addition, the lever 50 is also provided with a clamping finger 60 subjected to the action of a spring 61, the force of which can be adjusted by means of a nut 62; the finger 60 slides obliquely on the lever 50 so as to come into the service position press under the action of the spring 61 on the sole clamp element 58, itself pressing on the upper edge of the heel T of the ski boot vs.

Le fonctionnement de cette seconde variante est analogue à celui des réalisations décrites précédemment, la position bascule étant atteinte lorsque les axes 51, 57 et 56 sont situés dans un seul et même plan. Dans le cas théorique de la chute avant « pure •, la force tendant à soulever le talon T agit dans un premier temps sur le doigt 60 par l'entremise du serre-semelle 58. C'est seulement lorsque le doigt 60 est complètement rétracté contre l'action du ressort 61 et que le serre-semelle 58 vient buter contre le levier 50, que celui-ci commence à pivoter autour de l'axe fixe 54 et à déplacer l'axe d'articulation 57, en comprimant le boîtier-ressort 54,55, jusqu'au point bascule. Comme précédemment, la position ouverte est atteinte une fois le point bascule dépassé.The operation of this second variant is similar to that of the embodiments described above, the tilting position being reached when the axes 51, 57 and 56 are located in one and the same plane. In the theoretical case of the "pure" front fall, the force tending to lift the heel T acts initially on the finger 60 through the sole clamp 58. It is only when the finger 60 is fully retracted against the action of the spring 61 and that the sole clamp 58 abuts against the lever 50, that the latter begins to pivot around the fixed axis 54 and to move the articulation axis 57, compressing the housing - spring 54.55, up to the tipping point. As before, the open position is reached once the tipping point has been passed.

La forme d'exécution illustrée sur les figures 8 à 10 se distingue de celle représentée sur les figures 1 à 4 par plusieurs aspects essentiellement constructifs.The embodiment illustrated in Figures 8 to 10 differs from that shown in Figures 1 to 4 by several essentially constructive aspects.

Tout d'abord, en ce qui concerne le mécanisme de serrage latéral, celui-ci comporte des mâchoires 62 portées par des bras 63 dont l'axe de pivotement 64 sur la surface supérieure du ski S est situé en arrière desdites mâchoires 62. Chacune de ces mâchoires 62 présente une griffe antérieure 62a et une griffe postérieure 62b, coopérant en position de service fermée (voir figure 1) avec des empreintes correspondant à la forme desdites griffes et que présente la semelle de la chaussure de ski C.First of all, as regards the lateral tightening mechanism, this comprises jaws 62 carried by arms 63, the pivot axis 64 of which on the upper surface of the ski S is situated behind said jaws 62. Each of these jaws 62 has a front claw 62a and a rear claw 62b, cooperating in the closed service position (see FIG. 1) with imprints corresponding to the shape of said claws and which has the sole of the ski boot C.

Comme précédemment, les mâchoires latérales 62 sont reliées à une talonnière 65 par l'entremise d'une tringle 66 et d'un système de biellettes articulées 10,11. De même, l'extrémité avant 31' de la plaque de base 31 destinée à recevoir la chaussure C est en porte-à-faux au-dessus d'un espace rempli d'une mousse plastique 34 ; de plus, la face supérieure de cette extrémité avant 31' déformable élastiquement est munie d'une plaquette de glissement 67, par exemple en Téflon, favorisant le. dégagement de la chaussure de ski C. Enfin, une butée de positionnement 68 est montée coulissante longitudinalement en avant de la plaque de base 31 et peut être fixée en une position déterminée au moyen d'une vis de fixation 69.As before, the lateral jaws 62 are connected to a heel piece 65 by means of a rod 66 and a system of articulated links 10, 11. Likewise, the front end 31 ′ of the base plate 31 intended to receive the shoe C is cantilevered above a space filled with a plastic foam 34; in addition, the upper face of this elastically deformable front end 31 ′ is provided with a sliding plate 67, for example made of Teflon, favoring the. release of the ski boot C. Finally, a positioning stop 68 is slidably mounted longitudinally in front of the base plate 31 and can be fixed in a determined position by means of a fixing screw 69.

En ce qui concerne la talonnière 65, elle consiste en une variante de celle illustrée sur les figures 5 et 6. Dans cette réalisation, le boîtier-ressort, également formé de deux parties 70,71 coulissant l'une dans l'autre et contenant un ressort hélicoïdal 72, est monté pivotant sur sa partie arrière 70 autour d'axes 73 fixés dans les parois du boîtier principal 74 de la talonnière 65. La partie antérieure 71 du boîtier-ressort est articulée sur le levier d'actionnement 75 monté pivotant sur un axe 76 fixé transversalement dans les parois du boitier 74 de la talonnière 65, par l'entremise d'une biellette triangulaire 77.As regards the heel piece 65, it consists of a variant of that illustrated in FIGS. 5 and 6. In this embodiment, the spring case, also formed from two parts 70, 71 sliding one inside the other and containing a helical spring 72, is pivotally mounted on its rear part 70 around axes 73 fixed in the walls of the main housing 74 of the heel piece 65. The front part 71 of the spring housing is articulated on the actuating lever 75 pivotally mounted on an axis 76 fixed transversely in the walls of the case 74 of the heel piece 65, by means of a triangular link 77.

La biellette triangulaire 77 est donc articulée par ses angles sur l'extrémité avant de la partie antérieure 71 du boîtier-ressort, sur le levier d'actionnement 75 et sur une des extrémités de la biellette coudée 78, par les axes de pivotement respectifs 79,80,81. Les biellettes coudées 78, servant de bascules, sont pivotées sur des axes 82 fixés dans les parois du boîtier 74, et comportent à leur autre extrémité un axe transversal 83 en prise avec une fourchette 66' que présente l'extrémité arrière de la tringle 66.The triangular link 77 is therefore articulated by its angles on the front end of the front part 71 of the spring housing, on the actuation lever 75 and on one of the ends of the angled link 78, by the respective pivot axes 79 , 80.81. The angled rods 78, serving as rockers, are pivoted on axes 82 fixed in the walls of the housing 74, and have at their other end a transverse axis 83 engaged with a fork 66 'which has the rear end of the rod 66 .

De plus, un élément serre-semelle 84 est fixé au levier 75 et pivote avec lui autour de l'axe 76 ; cet élément serre-semelle 84 est également solidaire dudit levier 75 par l'axe 80, toutefois un jeu est prévu entre cet axe 80 et l'élément serre-semelle 84 (en pointillé sur la figure 8) de manière à permettre, comme dans les réalisations précédentes, le fonctionnement de la fixation même en présence d'une fine couche de glace ou de neige entre la semelle de la chaussure C et la plaque de base 31, voire entre l'élément serre-semelle 84 et le rebord supérieur du talon T.In addition, a sole clamping element 84 is fixed to the lever 75 and pivots with it around the axis 76; this sole-clamping element 84 is also integral with said lever 75 by the axis 80, however a clearance is provided between this axis 80 and the sole-clamping element 84 (in dotted lines in FIG. 8) so as to allow, as in the previous embodiments, the operation of the binding even in the presence of a thin layer of ice or snow between the sole of the shoe C and the base plate 31, or even between the sole-clamping element 84 and the upper edge of the heel T.

Enfin, cette forme d'exécution comporte en outre un mécanisme de chaussage automatique (« step-in ») combiné avec un frein ou stopper. Celui-ci est formé de deux branches latérales 85 reliées par une boucle-ressort 86, celle-ci étant surmontée d'une plaquette d'appui 87 horizontale. Les branches latérales 85 sont maintenues de chaque côté par deux axes cylindriques 88 montés transversalement dans les parois latérales du boîtier 74. Chaque axe cylindrique 58 présente sur sa surface externe une nervure hélicoïdale 89 coopérant avec une rainure pratiquée à l'intérieur du passage à travers la paroi du boîtier 74. de telle sorte que les axes se déplacent transversalement dans les passages pratiqués dans les parois du boîtier 74 en tournant sur eux-mêmes.Finally, this embodiment also includes an automatic shoeing mechanism ("step-in") combined with a brake or stop. The latter is formed of two lateral branches 85 connected by a spring loop 86, the latter being surmounted by a horizontal support plate 87. The lateral branches 85 are held on each side by two cylindrical axes 88 mounted transversely in the side walls of the housing 74. Each cylindrical axis 58 has on its external surface a helical rib 89 cooperating with a groove formed inside the passage through the enclosure wall 74. so that the axes move transversely in the passages made in the walls of the housing 74 while turning on themselves.

Le fonctionnement de cette forme d'exécution est le même que dans le cas des réalisations déjà décrites. Les axes 81 et 82 de la biellette coudée 78 se déplacent parallèlement aux axes 76 et 80, et la position « bascule entre la position de service fermée (figure 8) et la position ouverte (figure 10) est atteint lorsque les axes 81, 82 et 76, 80 sont dans des plans approximativement horizontaux.The operation of this embodiment is the same as in the case of the embodiments already described. The axes 81 and 82 of the angled link 78 move parallel to the axes 76 and 80, and the position "switches between the closed service position (FIG. 8) and the open position (FIG. 10) is reached when the axes 81, 82 and 76, 80 are in approximately horizontal planes.

Quant au mécanisme de step-in, il fonctionne comme suit : en position ouverte de chaussage, les axes cylindriques 88 sont dans la position la plus éloignée l'une de l'autre (figure 12) sous l'action conjuguée de la boucle-ressort 86 et d'un ressort 90 disposé transversalement entre les deux axes 88 ; dans cette position ouverte, les branches latérales 85 sont écartées vers l'extérieur du ski et font saillie sous la semelle de celui-ci, alors que la boucle 86 et la plaquette 87 sont au-dessus de la surface supérieure du ski. Dès que l'on exerce une pression sur la plaquette d'appui 87 en appuyant le talon de la chaussure de ski, les axes cylindriques 88 sont poussés l'un vers l'autre par le pivotement des branches 85 et contre l'action du ressort 90, ceci jusqu'à ce que les extrémités internes des deux axes 88 viennent en butée contre une pente 91 que présente la tringle 66 (figure 13) ; si la pression est augmentée, les axes cylindriques 88 appuyant sur cette pente 91 tendent à pousser la tringle 66 vers l'arrière jusqu'à ce que la position bascule soit dépassée, ce qui provoque la fermeture des mâchoires 62 sur la semelle de la chaussure C et l'appui de l'élément serre-semelle 84 sur le talon T de celle-ci.As for the step-in mechanism, it works as follows: in the open fitting position, the cylindrical axes 88 are in the position furthest from each other (FIG. 12) under the combined action of the buckle- spring 86 and a spring 90 disposed transversely between the two axes 88; in this open position, the lateral branches 85 are separated towards the outside of the ski and protrude under the sole thereof, while the loop 86 and the plate 87 are above the upper surface of the ski. As soon as pressure is exerted on the support plate 87 by pressing the heel of the ski boot, the cylindrical axes 88 are pushed towards one another by the pivoting of the branches 85 and against the action of the spring 90, this until the internal ends of the two axes 88 abut against a slope 91 presented by the rod 66 (Figure 13); if the pressure is increased, the cylindrical axes 88 pressing on this slope 91 tend to push the rod 66 backwards until the tilting position is exceeded, which causes the jaws 62 to close on the sole of the shoe C and the support of the sole clamping element 84 on the heel T thereof.

Dans toutes les variantes de la fixation selon l'invention décrites en référence au dessin annexé, il est donc prévu un système permettant de compenser le jeu nécessaire pour que la fixation, et plus précisément tant les mâchoires latérales que le serre-semelle de la talonnière, puisse être fermée efficacement sur la chaussure de ski même en présence d'une fine couche de neige ou de glace par exemple sous la semelle de ladite chaussure.In all the variants of the binding according to the invention described with reference to the appended drawing, a system is therefore provided making it possible to compensate for the play necessary for the binding, and more precisely both the lateral jaws and the sole clamp of the heel piece , can be effectively closed on the ski boot even in the presence of a thin layer of snow or ice, for example under the sole of said boot.

Sur les figures 14 à 16 est illustrée une réalisation préférée des mâchoires latérales, dans laquelle chacune de ces mâchoires présente deux parties distinctes ; d'une part une partie antérieure 2a pliée vers l'intérieur et de bas en haut avec un angle aigu d'environ 30° par rapport au plan du ski, et d'autre part une partie postérieure 2b sensiblement verticale et faisant avec l'axe longitudinal du ski un angle obtu d'environ 70°.In Figures 14 to 16 is illustrated a preferred embodiment of the side jaws, in which each of these jaws has two separate parts; on the one hand a front part 2a folded inwards and from the bottom upwards with an acute angle of approximately 30 ° relative to the plane of the ski, and on the other hand a rear part 2b which is substantially vertical and forms with the longitudinal axis of the ski an obtuse angle of approximately 70 °.

La partie antérieure 2a des mâchoires est destinée à assurer le maintien latéral de la chaussure (contre les efforts de torsion), et à maintenir la chaussure C sur le ski contre les efforts de chute arrière d'une part et partiellement de chute avant (en combinaison avec le serre-semelle 29 de la talonnière). Quant à la partie postérieure 2b, elle joue le rôle de moyen de centrage longitudinal de la chaussure C, en opposition avec le serre-semelle 29 de la talonnière ; cette partie postérieure 2b sensiblement verticale ne gêne pas le dégagement de la chaussure en cas de chute avant « pure •, puisque les mâchoires dans ce cas s'écartent vers l'extérieur pour permettre le dégagement immédiat vers l'avant de la chaussure.The front part 2a of the jaws is intended to ensure the lateral retention of the boot (against torsional forces), and to maintain the boot C on the ski against the forces of rear fall on the one hand and partially of front fall (in combination with the heel clamp 29). As for the rear part 2b, it plays the role of longitudinal centering means of the shoe C, in opposition with the sole clamp 29 of the heel piece; this substantially vertical posterior part 2b does not hinder the release of the shoe in the event of a "pure" front fall, since the jaws in this case move outward to allow immediate release towards the front of the shoe.

Les figures 17 et 18 illustrent une réalisation de la chaussure de ski C, dont la semelle présente dans sa portion médiane une empreinte formant une ouverture 93 et un taquet 94, celui-ci présentant une face inclinée à environ 30° de bas en haut et de l'extérieur vers l'intérieur. L'empreinte est de préférence réalisée de fabrication avec la semelle, et la face inclinée du taquet 94 est destinée à coopérer avec la partie 2a de la mâchoire de serrage de la fixation. De plus, l'empreinte 93 réalisée dans la semelle présente également une nervure longitudinale 95 avec des parois coniques 95' de chaque côté, dont l'inclinaison va de bas en haut et de l'intérieur vers l'extérieur (voir figure 18), ayant donc en coupe transversale la forme d'un V. En cas d'ouverture des mâchoires latérales, les parois coniques 95' servent à faciliter l'éjection de la mâchoire 2 venant après le dégagement de celle-ci du taquet 94, l'arête antérieure de la portion avant 2a de ladite mâchoire venant en effet en butée avec la paroi conique 95'.FIGS. 17 and 18 illustrate an embodiment of the ski boot C, the sole of which has in its middle portion an imprint forming an opening 93 and a cleat 94, the latter having a face inclined at about 30 ° from bottom to top and from outside to inside. The imprint is preferably produced during manufacture with the sole, and the inclined face of the cleat 94 is intended to cooperate with the part 2a of the clamping jaw of the binding. In addition, the imprint 93 made in the sole also has a longitudinal rib 95 with conical walls 95 'on each side, the inclination going from bottom to top and from the inside to the outside (see Figure 18). , therefore having a cross-section in the shape of a V. In the event of opening of the lateral jaws, the conical walls 95 ′ serve to facilitate the ejection of the jaw 2 coming after the release of the latter from the cleat 94, l 'anterior edge of the front portion 2a of said jaw indeed coming into abutment with the conical wall 95'.

Sur les figures 19 et 20 est illustrée une première variante de la plaque-support 31. Dans cette variante, la plaque-support 31 est munie de plaquettes de « Téflon 96 fixée sur sa surface supérieure, plus particulièrement au niveau des mâchoires latérales 2 et sur son extrémité antérieure. Au moins la portion antérieure 31' de la plaque-support 31 est réalisée en un matériau ressort, du type « Delrin » par exemple, de telle sorte que cette portion antérieure 31' en porte-à-faux soit flexible et déformable comme une plaque-ressort. En outre, l'élément de guidage latéral 32 monté pivotant sur une vis 35 est soumis à l'action de deux lames-ressorts 97. Enfin, une butée réglable 98 est montée coulissante longitudinalement à l'avant de la plaque-support 31, une vis de fixation 99 coopérant avec des orifices pratiqués dans la partie horizontale de cette butée 98. Cette butée 98, dont le réglage est effectué en fonction de la pointure de la chaussure à fixer sur le ski, est uniquement destinée à faciliter pour le skieur la mise en position longitudinale de la chaussure sur la fixation.In FIGS. 19 and 20 is illustrated a first variant of the support plate 31. In this variant, the support plate 31 is provided with “Teflon 96” plates fixed on its upper surface, more particularly at the level of the lateral jaws 2 and on its anterior end. At least the front portion 31 'of the support plate 31 is made of a spring material, of the "De lr i n " type for example, so that this front portion 31' in overhang is flexible and deformable like a spring plate. In addition, the lateral guide element 32 pivotally mounted on a screw 35 is subjected to the action of two leaf springs 97. Finally, an adjustable stop 98 is slidably mounted longitudinally in front of the support plate 31, a fixing screw 99 cooperating with orifices made in the horizontal part of this stop 98. This stop 98, the adjustment of which is carried out according to the size of the boot to be fixed on the ski, is only intended to facilitate for the skier the longitudinal position of the shoe on the binding.

Dans cette variante, la semelle de la chaussure (non illustrée) repose donc sur trois surfaces légèrement surélevées, à savoir les deux plaques de « Téflon 66 et l'élément de guidage latéral 32. Les frottements avec la semelle sont donc limités à ces trois surfaces, et le dégagement de la chaussure en cas de chute combinée torsion-avant en torsion-arrière est facilitée. En outre, la possibilité de déformation élastique vers le bas et latéralement de la portion antérieure 31' de la plaque-support 31 permet de diminuer les bras de levier et ainsi de diminuer le couple combiné d'environ 20 % par rapport à une plaque-support classique non déformable élastiquement.In this variant, the sole of the shoe (not shown) therefore rests on three slightly raised surfaces, namely the two “Teflon 66” plates and the lateral guide element 32. The friction with the sole is therefore limited to these three surfaces, and the release of the shoe in the event of a combined torsional-front-torsional-rear fall is facilitated. In addition, the possibility of elastic deformation downwards and laterally of the anterior portion 31 ′ of the support plate 31 makes it possible to reduce the lever arms and thus to reduce the combined torque by approximately 20% compared to a plate- classic support not elastically deformable.

Enfin, dans la seconde variante illustrée sur les figures 21 et 22, la plaque-support 100 est montée pivotante autour d'une vis 101 prévue à l'arrière de ladite plaque, cette portion arrière 100' étant de plus munie d'ailettes latérales 102 servant d'éléments de guidage latéral. Ainsi, en cas de torsion, la chaussure peut être aisément dégagée par le pivotement de toute la plaque 100 recouvrant le mécanisme d'actionnement des mâchoires latérales 2. La plaque-support pivotante 100 est automatiquement ramenée en position par les mâchoires 2.Finally, in the second variant illustrated in FIGS. 21 and 22, the support plate 100 is pivotally mounted around a screw 101 provided at the rear of said plate, this rear portion 100 'being moreover provided with lateral fins 102 serving as lateral guide elements. Thus, in the event of torsion, the shoe can be easily released by the pivoting of the entire plate 100 covering the actuation mechanism of the side jaws 2. The pivoting support plate 100 is automatically brought back into position by the jaws 2.

Par rapport aux fixations de sécurité connues, celle selon l'invention présente une fiabilité plus grande notamment dans les cas, statistiquement les plus fréquents, de chutes combinées torsion-chute avant et torsion-chute arrière. Cette plus grande fiabilité est due au fait que les forces agissant sur la fixation, c'est-à-dire le couple de torsion sur les mâchoires latérales et la force verticale sur l'élément serre-semelle, s'additionnent pour provoquer l'ouverture de la fixation, alors que dans les fixations connues elles sont antagonistes, la surcharge avant par exemple rendant plus difficile l'ouverture de la butée avant.Compared to known safety bindings, that according to the invention has greater reliability, especially in the statistically most frequent cases of combined torsion-fall forward and rear torsion-fall. This greater reliability is due to the fact that the forces acting on the binding, that is to say the torsional torque on the side jaws and the vertical force on the sole clamp element, add up to cause the opening of the binding, while in known bindings they are antagonistic, the front overload for example making it more difficult to open the front stop.

La fixation selon l'invention permet donc une réduction très importante de la somme des contraintes subies par la jambe du skieur lors des chutes dites « combinées avant ou arrière avec torsion par le fait que les différentes composantes des forces d'ouverture torsion et chutes en avant par exemple, se partagent le travail du déclenchement d'un seul mécanisme de retenue et non plus deux comme c'est le cas avec une fixation classique avec butée avant et talonnière. En effet, les forces de chute en avant provoquant l'ouverture de la talonnière, conduisent également à l'ouverture des mâchoires du système de retenue en torsion, réduisant ainsi le couple de torsion d'autant. On peut même en conclure que lorsqu'il y a chute combinée avant et torsion, les forces de retenue dans les deux directions avant et torsion sont toutes les deux inférieures à leur valeur nominale de réglage puisque chacune d'entre elles participe à l'ouverture de l'autre.The binding according to the invention therefore allows a very significant reduction in the sum of the stresses undergone by the skier's leg during falls known as “combined front or rear with torsion by the fact that the different components of the opening forces torsion and falls in before for example, share the work of triggering a single retaining mechanism and no longer two as is the case with a classic binding with front stop and heel. Indeed, the forward fall forces causing the opening of the heel, also lead to the opening of the jaws of the torsion restraint system, thereby reducing the torsional torque accordingly. We can even conclude that when there is a combined forward and torsional fall, the holding forces in both the forward and torsional directions are both less than their nominal adjustment value since each of them participates in the opening the other.

En outre, le mécanisme utilisé est simple, compact et formé de relativement peu de pièces. Les coincements possibles sur la chaussure, par exemple lors de la flexion du ski, sont fortement diminués. De plus, la présence d'un seul ressort de compression, agissant quasi-simultanément sur les mâchoires latérales et la talonnière, permet de simplifier les opérations de réglage de la fixation. Enfin, la fixation selon l'invention présente l'avantage, commercialement, et également en vue de son utilisation sur des skis de location, que le mécanisme de fixation comportant trois zones de serrage, à savoir deux zones latérales et une arrière, de permettre le chaussage sur la même fixation installée sur un ski de chaussures de pointures différentes. Seule la distance entre la talonnière et les mâchoires latérales doit être standardisée et correspondre à celle entre le talon et les taquets latéraux de la semelle des chaussures.In addition, the mechanism used is simple, compact and formed of relatively few parts. The possible jams on the boot, for example during the flexing of the ski, are greatly reduced. In addition, the presence of a single compression spring, acting almost simultaneously on the side jaws and the heel, simplifies the operations of adjusting the binding. Finally, the binding according to the invention has the advantage, commercially, and also with a view to its use on rental skis, that the binding mechanism comprising three clamping zones, namely two lateral zones and one rear, allows the boot on the same binding installed on a ski of shoes of different sizes. Only the distance between the heel and the lateral jaws must be standardized and correspond to that between the heel and the lateral cleats of the sole of the shoes.

Claims (21)

1. Safety binding of a boot (C) on a ski (S) comprising two lateral jaws (2, 62) mounted displaceably under the action of an elastic means (5) in a plane parallel to that of the ski, between a closed service position in which these jaws coact with the sole of the boot and an open position in which this latter is released, characterized by the fact that it comprises a heel means (3, 65) having a sole grip member (29, 46, 58, 84) mounted displaceably under the action of the same elastic means (5) in a longitudinal plane perpendicular to the plane of the ski, between a service position in which said member maintains the rear end (T) of the sole of the boot on the ski and an open position in which this latter is released, the whole being so arranged that the opening, respectively the closing, of the lateral jaws or of the sole grip element provokes the opening, respectively the closing, of the sole grip member or of the lateral jaws.
2. Binding according to claim 1, characterized by the fact that each lateral jaw is carried by an arm (7, 63) mounted pivotally on an axle (8, 64) perpendicular to the plane of the ski and is connected by means of levers (10, 11) pivoted at one end of a longitudinally slidable strap (9, 19, 66), and by the fact that the other end of the strap coacts with a rocker provided by the heel means and which is subjected to the action of the elastic means, whereby this rocker has two stable positions corresponding to the service and open positions respectively of the binding.
3. Binding according to claim 1 or 2, characterized by the fact that the sole grip member of the heel means is secured to a lever (6, 36, 50, 75) pivotally mounted on a transverse axle (22, 39, 57, 76) and parallel to the plane of the ski and is subjected to the action of the elastic means.
4. Binding according to claim 3, characterized by the fact that the sole grip member is of one piece of manufacture with the lever.
5. Binding according to claim 3, characterized by the fact that the sole grip member is mounted pivotally relative to the lever and in a manner such as to be secured with play to the latter.
6. Binding according to one of claims 2 to 5, characterized by the fact that the elastic means comprises a spring housing formed of two respectively forward (24, 43) and rear (21, 42) parts sliding one within the other and containing a compression spring (5), the forward part of this spring housing being articulated on the lever.
7. Binding according to claim 6, characterized by the fact that the rocker is comprised by a cranked member (17) whose one end is connected to the strap for actuating the lateral jaws and whose other end is pivoted to the rear part of the spring housing, this cranked menber being mounted pivotally by its cranked portion on a transverse fixed axle (27).
8. Binding according to one of claims 1 to 7, characterized by the fact that the spring housing is pivotally mounted on a fixed transverse axle (23) and extends into a lateral recess (28) of said housing, the dimensions of this recess being greater than those of said transverse axle, whereby this axle will be substantially in the center of the recess in the closed service position of the binding and in abutment against the upper or lower wall of the recess during passage from this closed position to the open position.
9. Binding according to claim 6, characterized by the fact that the rocker is comprised by a cranked member (37) of which one arm is connected with the actuating strap (19) of the lateral jaws and the other end is articulated on the lever (36), this cranked member being pivotally mounted by its cranked portion on a transverse fixed axle (39), and by the fact that the rear part (42) of the spring housing is pivotally mounted on another transverse fixed axle (44).
10. Binding according to claim 6, characterized by the fact that the rocker is comprised by a portion of the lever (50) which comprises three transverse axles disposed in a triangle, the lower axle (53) being connected with the actuating strap (19) of the lateral jaws, the upper axle (57) corresponding to the articulation between the lever and the forward part (54) of the spring housing and the third axle (57) being a fixed axle about which the lever pivots, and by the fact that the rear part (55) of the spring housing is pivotally mounted in a fixed transverse axle (56).
11. Binding according to one of claims 3 to 10, characterized by the fact that the lever has a nose (30, 48) disposed substantially horizontally in open position of the binding and serving as actuating means for automatic donning.
12. Binding according to one of claims 2 to 5, characterized by the fact that the elastic member comprises a spring housing (65) formed in two respectively forward (71) and rear (70) parts sliding one within the other and containing a compression spring (72), by the fact that the rear part of this spring housing is pivotally mounted on a fixed transverse axle (73) and that the forward part of said housing is articulated on a first fixed corner (79) of a triangular lever (77), by the fact that a cranked menber (78) serving as a rocker is pivotally mounted by its cranked portion on a fixed transverse axle (82), that it is connected by one of its ends with the actuating strap (66) of the lateral laws and is articulated by its other end to a second corner of said triangular lever, and by the fact that this triangular lever is articulated by its third corner (75) on an actuating lever (75), this lever being pivotally mounted on a fixed transverse axle (76) and a sole grip member (84) being also mounted pivotally on the same fixed transverse axle and being connected with play to said lever.
13. Binding according to claim 12, characterized by the fact that it comprises a brake formed by two lateral branches (85) connected by a loop spring (86), each branch being maintained by a transverse cylindrical axle (88) mounted slidably and pivotally in a lateral wall (74) of the heel means, whereby said branch pivots with the cylindrical axle between an active position corresponding to the open position of the binding and in which it projects below the sole of the ski and a rest position corresponding to the closed position of the binding and in which it is disposed above and substantially parallel to the plane of the ski, and by the fact that the inner end of the cylindrical axles comes into contact with a portion (91) of the actuating strap (86) during passage from the active position of the branches to their rest position thereby to permit automatic donning.
14. Binding according to one of claims 1 to 13, characterized by the fact that a support plate (31) is fixed above the actuating mechanism of the lateral jaw (2) and has at its forward end a cutaway deformable portion (31') subjected to an elastic force tending to maintain this portion substantially parallel to the upper surface of the ski when no pressure is exerted on said portion.
15. Binding according to claim 14, characterized by the fact that the elastic force is obtained by the elasticity of said forward cut-away portion or by means of a spring disposed beneath said portion.
16. Binding according to one of claims 14 and 15, characterized by the fact that the support plate has at its forward end a longitudinally slidably mounted adjustable abutment (98).
17. Binding according to one of claims 1 to 16, characterized by the fact that each jaw has a forward portion (2a) inclined upwardly and inwardly at an acute angle and a substantially vertical rear portion (2b) forming an obtuse angle with the longitudinal axis of the ski.
18. Ski boot adapted to be secured to a ski by means of the safety binding according to claim 1, characterized by the fact that it comprises a sole having impressions coacting in the service position with the lateral jaws of the binding.
19. Boot according to claim 18, adapted to be secured to a ski by means of the security binding according to claim 17, characterized by the fact that the sole has on each side of its median portion at least one impression (93) comprising a stop (94), this stop having a face inclined upwardly and inwardly at an acute angle coacting in the service position with the inclined forward portion of the lateral jaw, as well as a longitudinal portion (95) disposed forwardly of said stop and having a V-shaped transverse cross section.
20. Boot according to claim 19, characterized by the fact that the impressions, the stops and the V-shaped portion are made of one piece of manufacture with the sole.
EP84103485A 1983-11-01 1984-03-29 Safety ski binding Expired EP0139815B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103485T ATE28575T1 (en) 1983-11-01 1984-03-29 SAFETY SKI BINDING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5903/83A CH654750A5 (en) 1983-11-01 1983-11-01 SAFETY ATTACHMENT OF A SHOE ON A SKI.
CH5903/83 1983-11-01

Publications (3)

Publication Number Publication Date
EP0139815A2 EP0139815A2 (en) 1985-05-08
EP0139815A3 EP0139815A3 (en) 1985-06-19
EP0139815B1 true EP0139815B1 (en) 1987-07-29

Family

ID=4301277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103485A Expired EP0139815B1 (en) 1983-11-01 1984-03-29 Safety ski binding

Country Status (7)

Country Link
US (1) US4657277A (en)
EP (1) EP0139815B1 (en)
JP (1) JPS60210279A (en)
AT (1) ATE28575T1 (en)
CA (1) CA1250607A (en)
CH (1) CH654750A5 (en)
DE (2) DE139815T1 (en)

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CH659953A5 (en) * 1984-10-19 1987-03-13 Haldemann Ag SAFETY ATTACHMENT OF A SHOE ON A SKI.
IT1205520B (en) * 1986-08-04 1989-03-23 Nordica Spa SKI BINDING PARTICULARLY FOR DOWNHILL SKIING AND RELATED BOOTS WITH REDUCED LENGTH SOLE
EP0857499B1 (en) 1995-01-20 2000-05-03 The Burton Corporation Snowboard boot binding mechanism
US6739615B1 (en) 1997-04-18 2004-05-25 The Burton Corporation Snowboard binding
FR2786706B1 (en) * 1998-12-08 2001-02-09 Look Fixations Sa SKI BINDING
WO2003018146A1 (en) * 2001-08-28 2003-03-06 Gaston Haldemann Fixing device for a gliding sports item
US6722688B2 (en) 2001-11-21 2004-04-20 The Burton Corporation Snowboard binding system
US7014232B2 (en) * 2003-07-10 2006-03-21 Alain Bosa Removable auxiliary handle for tools
DE102013201727A1 (en) * 2013-02-01 2014-08-07 Marker Deutschland Gmbh Heel holder with roll-shaped sole holder
US11040267B2 (en) 2017-03-14 2021-06-22 Stop River Development LLC Processor-controlled sport boot binding
EP3595474A4 (en) 2017-03-14 2020-05-06 Stop River Development LLC Processor-controlled snow sport boot binding
WO2020176500A1 (en) 2019-02-25 2020-09-03 Stop River Development LLC Safety mechanism for use with snow sport boot and binding system

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AT361347B (en) * 1978-04-06 1981-03-10 Tyrolia Freizeitgeraete JAW BODY FOR SKI BINDING
DE3370444D1 (en) * 1982-01-27 1987-04-30 Haldemann Ag Safety ski binding
CH645030A5 (en) * 1982-01-27 1984-09-14 Haldemann Ag SAFETY ATTACHMENT OF A SHOE ON A SKI AND SKI SHOE FOR THIS ATTACHMENT.
FR2523462A1 (en) * 1982-03-17 1983-09-23 Salomon & Fils F SECURITY FIXING FOR SKI

Also Published As

Publication number Publication date
ATE28575T1 (en) 1987-08-15
US4657277A (en) 1987-04-14
EP0139815A2 (en) 1985-05-08
JPS60210279A (en) 1985-10-22
DE139815T1 (en) 1985-08-29
CH654750A5 (en) 1986-03-14
CA1250607A (en) 1989-02-28
EP0139815A3 (en) 1985-06-19
DE3465017D1 (en) 1987-09-03

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